Specifications
28 Completing a Stacked Configuration March 2005
2 Attach the other end of the cable to a HSSDC connec-
tor on the switch immediately below. Repeat this proce-
dure until all switches in the stack are connected (see
illustrations a, b, and c below).
Note. There are no restrictions on which HSSDC stacking
ports must be connected. For example, a stacking cable
connected to port 51 on an OS6648 may be connected to
either port 51 or port 52 on the OS6648 immediately
below. However, for easier management, it is recom-
mended that you keep a consistent pattern for all switches
in the stack.
3 To provide added resiliency and redundancy, it is
strongly recommended that you install the optional one-
meter stacking cable to connect the top switch in the stack
to the bottom switch. Connect the unused HSSDC stack-
ing connectors located at ports 27 and 28 (OS6624,
OS6600-U24, OS6600-P24, OS6602-24) or 51 and 52
(OS6648 and OS6602-28) of each switch, as shown.
Note. The one-meter stacking cable is available with
Alcatel’s optional Redundant Stacking Kit.
E
X
PA
N
S
IO
N
/
S
T
A
C
K
IN
G
51 52
E
X
PA
N
S
IO
N
/
S
T
A
C
K
IN
G
51
52
E
X
PA
N
S
IO
N
/S
T
A
C
K
IN
G
51
52
E
X
PA
N
S
IO
N
/S
T
A
C
K
IN
G
51
52
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
IN
G
51 52
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
IN
G
51
52
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
I
N
G
51
52
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
IN
G
51
52
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
E
X
P
A
N
S
I
O
N
/
S
T
A
C
K
IN
G
51 52
E
X
P
A
N
S
I
O
N
/
S
T
A
C
K
IN
G
51
52
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
I
N
G
51
52
E
X
P
A
N
S
IO
N
/
S
T
A
C
K
IN
G
51
52
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
LINK/ACT
a
b
c
Connecting the Switches in the Stack
E
XPA
N
S
IO
N
/S
T
A
C
K
IN
G
51 5
2
EX
PA
N
S
IO
N
/
S
T
A
C
K
IN
G
51
5
2
E
XPA
N
S
IO
N
/S
T
A
C
K
IN
G
51
5
2
E
X
PA
N
S
IO
N
/S
T
A
C
K
IN
G
5
1
5
2
LINK/ACT
LINK/ACT
LINK/ACT
LIN
K/ACT
LINK/ACT
LINK/A
CT
LINK/ACT
LINK/ACT
d
Recommended Redundant Connection Between Switches